Potentially Harmful Applications (PHAs) | Play Protect

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track-metadata-eventdetail="/android/play-protect/warning-strings" ><span class="devsite-nav-text" tooltip>Warning Strings</span></a></li> <li class="devsite-nav-item"><a href="/android/play-protect/warning-dev-guidance" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /android/play-protect/warning-dev-guidance" track-type="bookNav" track-name="click" track-metadata-eventdetail="/android/play-protect/warning-dev-guidance" ><span class="devsite-nav-text" tooltip>Developer Guidance for Warnings</span></a></li> <li class="devsite-nav-item"><a href="/android/play-protect/pha-reporting" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /android/play-protect/pha-reporting" track-type="bookNav" track-name="click" track-metadata-eventdetail="/android/play-protect/pha-reporting" ><span class="devsite-nav-text" tooltip>Report a PHA</span></a></li> </ul> </div> </div> </nav> </devsite-book-nav> <section id="gc-wrapper"> <main role="main" class="devsite-main-content" has-book-nav > <devsite-content> <article class="devsite-article"><style> /* Styles inlined from /android/play-protect/custom/gppStyle.css */ @font-face { font-family: Euclid; src: url(/android/play-protect/custom/euclid.woff); } @font-face { font-family: andBlack; src: url(/android/play-protect/custom/and_black.woff); } @keyframes play-float { 0% { transform: translatey(-10px); } 50% { transform: translatey(-30px); } 100% { transform: translatey(-10px); } } .heroTop { /* App Defense Alliance Index */ margin-top: 50px; font-family: andBlack; font-size: 18px; margin-right: 40px; margin-left: 40px; } img { margin-left: auto; margin-right: auto; display: block; } .grid-container { display: grid; grid-template-columns: auto auto; padding: 10px; grid-gap: 10px; } .grid-item { padding: 10px; background-color: #F1F3F4; text-align: center; } .phatitle { background-color: #D2E3FC; border-radius: 10px; padding: 5px 5px 10px 10px; margin-top: 30px; margin-bottom: 30px; filter: drop-shadow(5px 5px 5px #9AA0A6); } .box { width: 900px; padding-top: 5px; border-width: 1px; padding-left: 3px; padding-bottom: 10px; margin: auto; word-wrap: break-word; } .gpp-partner-description { /* App Defense Alliance Index */ padding: 0px 10px 0px 0px; font-size: 18px; } .gpp-billboard { /* App Defense Alliance Index */ font-family: Euclid; font-size: 350%; z-index: 1; } .se-billboard { /* App Defense Alliance Index */ font-size: 350%; z-index: 1; } .readyse-billboard { /* App Defense Alliance Index */ font-family: andBlack; font-size: 350%; z-index: 1; } .gpp-partners-header { /* App Defense Alliance Index */ font-family: Euclid; font-size: 150%; } /* ********* Animations ******** */ .container { width: 100%; height: 100%; display: flex; flex-direction: column; justify-content: center; align-items: center; } .adaContainer { /* App Defense Alliance Index */ width: 100%; height: 100%; display: flex; flex-direction: column; justify-content: center; align-items: center; position: relative; margin-top: 50px; } .play-play { -webkit-filter: drop-shadow(5px 5px 5px #9AA0A6); filter: drop-shadow(5px 5px 5px #9AA0A6); overflow: hidden; transform: translatey(0px); animation: play-float 6s ease-in-out infinite; } .gppparallax { /* The image used */ background-image: url('/android/play-protect/images/hero-poster.jpg'); border-radius: 5px; /* Set a specific height */ min-height: 20px; margin: 0 0 15px 0; /* Create the parallax scrolling effect */ background-attachment: fixed; background-position: center; background-repeat: no-repeat; background-size: cover; } /* ******* Linear Roll or Spin ******* */ @-webkit-keyframes shift_linearRoll { 0% { -ms-transform: scale(1, 1) rotate(0deg) translate(0px, 0px); -webkit-transform: scale(1, 1) rotate(0deg) translate(0px, 0px); transform: scale(1, 1) rotate(0deg) translate(0px, 0px); } 100% { -ms-transform: scale(1, 1) rotate(360deg) translate(0px, 0px); -webkit-transform: scale(1, 1) rotate(360deg) translate(0px, 0px); transform: scale(1, 1) rotate(360deg) translate(0px, 0px); } } @keyframes shift_linearRoll { 0% { -ms-transform: scale(1, 1) rotate(0deg) translate(0px, 0px); -webkit-transform: scale(1, 1) rotate(0deg) translate(0px, 0px); transform: scale(1, 1) rotate(0deg) translate(0px, 0px); } 100% { -ms-transform: scale(1, 1) rotate(360deg) translate(0px, 0px); -webkit-transform: scale(1, 1) rotate(360deg) translate(0px, 0px); transform: scale(1, 1) rotate(360deg) translate(0px, 0px); } } .gppRoll { -webkit-animation-delay: 0s; -webkit-animation-duration: 2s; -webkit-animation-name: shift_linearRoll; -webkit-animation-fill-mode: forwards; animation-delay: 0s; animation-duration: 2s; animation-name: shift_linearRoll; animation-fill-mode: forwards; animation: shift_linearRoll 6s infinite; position: relative; } .seroll { -webkit-animation-delay: 2s; -webkit-animation-duration: 3s; -webkit-animation-name: shift_linearRoll; -webkit-animation-fill-mode: forwards; animation-delay: 2s; animation-duration: 3s; animation-name: shift_linearRoll; animation-fill-mode: forwards; animation: shift_linearRoll 5s infinite; position: relative; } /* ******** On-load fade into view from 0% to 100% ******** */ @-webkit-keyframes shift_enterZoom { 0% { -ms-transform: scale(0, 0); -webkit-transform: scale(0, 0); transform: scale(0, 0); opacity: 0; } 100% { -ms-transform: scale(1, 1); -webkit-transform: scale(1, 1); transform: scale(1, 1); opacity: 1; } } .gppEnterZoom { -webkit-animation-delay: 0s; -webkit-animation-duration: 2s; -webkit-animation-name: shift_enterZoom; -webkit-animation-fill-mode: forwards; animation-delay: 0s; animation-duration: 2s; animation-name: shift_enterZoom; animation-fill-mode: forwards; position: absolute; } .euclidFont { font-family: "Euclid" !important; } .vuln-grey { background-color: #212121 !important; color: #fff !important; box-shadow: 10px 10px 5px rgba(48, 188, 255, 0.2) !important; } [background=blue-grey-dark] { background-color: #212121 !important; } /* ******* Hacker Hints Custom Notice ******* */ aside, aside code, aside :link, aside :visited, .hacknote, .hacknote code, .hacknote :link, .hacknote :visited, .special, .special code, .special :link, .special :visited { background: #212121; color: #fff; } aside::before, .hacknote::before, .special::before { content: "code"; } /* **** cari **** */ *, *:before, *:after { box-sizing: border-box; } .testimonials-section { background: #fff; height: 400px; position: relative; overflow: hidden; display: -webkit-box; display: -webkit-flex; display: -ms-flexbox; display: flex; -webkit-flex-flow: row nowrap; -ms-flex-flow: row nowrap; flex-flow: row nowrap; -webkit-box-align: end; -webkit-align-items: flex-end; -ms-flex-align: end; align-items: flex-end; -webkit-box-pack: center; -webkit-justify-content: center; -ms-flex-pack: center; justify-content: center; } .slider__nav { width: 12px; height: 12px; margin: 900px 12px; border-radius: 50%; z-index: 10; outline: 6px solid #ccc; outline-offset: -6px; box-shadow: 0 0 0 0 #333, 0 0 0 0 rgba(51, 51, 51, 0); cursor: pointer; -webkit-appearance: none; -moz-appearance: none; appearance: none; -webkit-backface-visibility: hidden; backface-visibility: hidden; } .slider__nav:checked { -webkit-animation: check 0.4s linear forwards; animation: check 0.4s linear forwards; } .slider__nav:checked:nth-of-type(1) ~ .slider__inner { left: 0%; } .slider__nav:checked:nth-of-type(2) ~ .slider__inner { left: -100%; } .slider__nav:checked:nth-of-type(3) ~ .slider__inner { left: -200%; } .slider__nav:checked:nth-of-type(4) ~ .slider__inner { left: -300%; } .slider__nav:checked:nth-of-type(5) ~ .slider__inner { left: -400%; } .slider__inner { position: absolute; top: 18px; left: 0; width: 500%; height: auto; -webkit-transition: left 0.4s; transition: left 0.4s; display: -webkit-box; display: -webkit-flex; display: -ms-flexbox; display: flex; -webkit-flex-flow: row nowrap; -ms-flex-flow: row nowrap; flex-flow: row nowrap; } .slider__contents { height: 100%; text-align: center; display: -webkit-box; display: -webkit-flex; display: -ms-flexbox; display: flex; -webkit-box-flex: 1; -webkit-flex: 1; -ms-flex: 1; flex: 1; -webkit-flex-flow: column nowrap; -ms-flex-flow: column nowrap; flex-flow: column nowrap; -webkit-box-align: center; -webkit-align-items: center; -ms-flex-align: center; align-items: center; -webkit-box-pack: center; -webkit-justify-content: center; -ms-flex-pack: center; justify-content: center; } .slider__caption { font-size: 12px; color: #111; opacity: .5; font-family: 'Roboto'; font-weight: bold; } .slider__txt { font-size: 12px; font-weight: bold; font-family: 'Roboto'; line-height: 1.7; color: #f86734; max-width: 750px; } quote { font-weight: bold; font-size: 100px; color: #000; margin-bottom: 0; margin-top: 8px; } @-webkit-keyframes check { 50% { outline-color: #333; box-shadow: 0 0 0 12px #333, 0 0 0 36px rgba(51, 51, 51, 0.2); } 100% { outline-color: #333; box-shadow: 0 0 0 0 #333, 0 0 0 0 rgba(51, 51, 51, 0); } } @keyframes check { 50% { outline-color: #333; box-shadow: 0 0 0 12px #333, 0 0 0 36px rgba(51, 51, 51, 0.2); } 100% { outline-color: #333; box-shadow: 0 0 0 0 #333, 0 0 0 0 rgba(51, 51, 51, 0); } } </style> <div class="devsite-article-meta nocontent" role="navigation"> <ul class="devsite-breadcrumb-list" aria-label="Breadcrumb"> <li class="devsite-breadcrumb-item "> <a href="https://developers.google.com/" class="devsite-breadcrumb-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Breadcrumbs" data-value="1" track-type="globalNav" track-name="breadcrumb" track-metadata-position="1" track-metadata-eventdetail="" > Home </a> </li> <li class="devsite-breadcrumb-item "> <div class="devsite-breadcrumb-guillemet material-icons" aria-hidden="true"></div> <a href="https://developers.google.com/products" class="devsite-breadcrumb-link 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data-label="Breadcrumbs" data-value="4" track-type="globalNav" track-name="breadcrumb" track-metadata-position="4" track-metadata-eventdetail="" > Potentially Harmful Applications </a> </li> </ul> <devsite-thumb-rating position="header"> </devsite-thumb-rating> </div> <h1 class="devsite-page-title" tabindex="-1"> Potentially Harmful Applications (PHAs) </h1> <devsite-feature-tooltip ack-key="AckCollectionsBookmarkTooltipDismiss" analytics-category="Site-Wide Custom Events" analytics-action-show="Callout Profile displayed" analytics-action-close="Callout Profile dismissed" analytics-label="Create Collection Callout" class="devsite-page-bookmark-tooltip nocontent" dismiss-button="true" id="devsite-collections-dropdown" dismiss-button-text="Dismiss" close-button-text="Got it"> <devsite-bookmark></devsite-bookmark> <span slot="popout-heading"> Stay organized with collections </span> <span slot="popout-contents"> Save and categorize content based on your preferences. </span> </devsite-feature-tooltip> <div class="devsite-page-title-meta"><devsite-view-release-notes></devsite-view-release-notes></div> <devsite-toc class="devsite-nav" depth="2" devsite-toc-embedded > </devsite-toc> <div class="devsite-article-body clearfix ">  <p>Potentially Harmful Applications (PHAs) are apps that could put users, user data, or devices at risk. These apps are often generically referred to as <em>malware</em>. We've developed a range of categories for different types of PHAs, including trojans, phishing, and spyware apps, and we are continuously updating and adding new categories.</p> <h3 id="potentially-harmful" data-text="Potentially harmful?" tabindex="-1">Potentially harmful?</h3> <p>There is some confusion around the ambiguity of the word <em>potentially</em> when used to describe malicious apps. Google Play Protect removes apps that have been flagged as Potentially Harmful because the app does contain malicious behavior not because we are simply unsure if the app is harmful or not. The word potentially is used here because malicious apps function differently depending on a variety of variables thus an app that is harmful to one Android device might not pose a risk at all to another Android device. For example, a device running the latest version of Android is not affected by harmful apps which use deprecated APIs to perform malicious behavior but a device that is still running a very early version of Android might be at risk. Mobile billing fraud poses a risk to devices connected to service carriers but devices which only connect to WIFI are not affected by these apps.</p> <p>Apps are flagged as a PHA if they clearly pose a risk to some or all Android devices and users.</p> <h3 id="user-wanted" data-text="User-wanted PHAs" tabindex="-1">User-wanted PHAs</h3> <p>Some apps that can weaken or disable Android security features aren't categorized as PHAs. These apps provide functionality that users want, such as rooting the device and other development features. Even though these apps are potentially harmful, users install them intentionally, so Google Play Protect manages them differently than other PHAs. <br> When a user begins to installI an app that's classified as user-wanted, Google Play Protect warns the user of the app's potential hazards just once. The user can decide whether to continue with the installation. After installation, the user-wanted classifications prevents Google Play Protect from sending additional warnings, so there's no disruption to the user experience.</p> <h3 id="classifications" data-text="Classifications" tabindex="-1">Classifications</h3> <p>There are several categories for classifying PHAs that help Play Protect detect them and determine the right action to take. These categories include malicious apps like trojans, spyware, and phishing apps, as well as user-wanted apps. If Play Protect detects a PHA, it displays a warning. For certain malicious apps, Play Protect automatically disables or removes the app. When Play Protect detects that a PHA contains features from multiple categories, it classifies the app based on the most harmful characteristics. For example, if an app applies to both ransomware and spyware categories, the Verify Apps message identifies it as ransomware.</p> <p>You can view the current PHA categories and definitions <a href="/android/play-protect/phacategories">here.</a></p> </div> <devsite-recommendations display="in-page" hidden yield> </devsite-recommendations> <devsite-thumb-rating position="footer"> </devsite-thumb-rating> <devsite-recommendations id="recommendations-link" yield></devsite-recommendations> <div class="devsite-floating-action-buttons"> </div> </article> <devsite-content-footer class="nocontent"> <p>Content and code samples on this page are subject to the licenses described in the <a href="/license">Content License</a>. Java and OpenJDK are trademarks or registered trademarks of Oracle and/or its affiliates.</p> <p>Last updated 2024-10-31 UTC.</p> </devsite-content-footer> <devsite-notification > </devsite-notification> <div class="devsite-content-data"> <template class="devsite-content-data-template"> [[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2024-10-31 UTC."],[[["Potentially Harmful Applications (PHAs), often called malware, pose risks to users, data, or devices."],["PHAs are categorized by type, such as trojans or spyware, with Google Play Protect continuously updating these categories."],["\"Potentially harmful\" signifies a confirmed risk to some or all Android devices, varying based on factors like Android version."],["User-wanted PHAs, like rooting apps, are acknowledged as potentially harmful but receive a single warning due to intentional installation."],["Google Play Protect classifies PHAs into various categories to trigger appropriate actions, prioritizing the most harmful characteristics in cases of overlap."]]],[]] </template> </div> </devsite-content> </main> <devsite-footer-promos class="devsite-footer"> </devsite-footer-promos> <devsite-footer-linkboxes class="devsite-footer"> <nav class="devsite-footer-linkboxes nocontent" aria-label="Footer links"> <ul class="devsite-footer-linkboxes-list"> <li class="devsite-footer-linkbox "> <h3 class="devsite-footer-linkbox-heading no-link">Build</h3> <ul class="devsite-footer-linkbox-list"> <li class="devsite-footer-linkbox-item"> <a href="//android.googlesource.com" class="devsite-footer-linkbox-link gc-analytics-event" 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